Euro 3 163 D5 Performance issues - Page 5

Max HEADVROOM · Jul 29th, 2017, 08:48

this is what mine sounds like..

https://www.youtube.com/watch?v=RXYCZj6xKdQ&t=16s

i rev, and then i get the tchsssssssssssss, sound when i back off the throttle.

wagonwheels · Jul 29th, 2017, 14:11

It was an experiment regarding fitting the down pipe Dave.It was a cheap ebay thing of poor quality to see if a standard v70 d5 downpipe could be made to fit.Answer is it can with alot if fannying about and bending but the resonance at 2000rpm was too much for me.Original downpipe being fitted today so my ears can recover.

davebb · Jul 29th, 2017, 14:23

Ok , please let me know if it seems to run any better with the STD one,
Thanks Dave

wagonwheels · Jul 31st, 2017, 18:47

Well the dip in power is less apparent now ,sadly it doesn't seem as powerful at the top end and sounds quiet again

davebb · Jul 31st, 2017, 22:31

Hi so do you think it has now stopped overboosting,
so have you got a high flow catback exhaust,
so the down pipe decat did improve performance, was the noise a lot louder ,
Dave

wagonwheels · Aug 1st, 2017, 23:30

I would say without scoping boost it is certainly boosting to spec.The down pipe that's refitted is the original Volvo system mated to a stainless one box system.The noise was nice apart from at 2000rpm where it seemed to resonate through the car while boosting at its highest (apparently) amount.It seemed to boost quicker and go better with the decat pipe but having not had it on a dyno its just seat of your pants feeling.Its difficult to gauge true bhp but the last s60 d5 185 (when standard) felt about the same apart from the xc has more low down pull.I think that's pretty impressive considering the added weight.When I had the s60 mapped it was a different car and was alot quicker than the xc.

Floozy · Aug 5th, 2017, 12:28

Quote:

Originally Posted by Max HEADVROOM

this is what mine sounds like..

https://www.youtube.com/watch?v=RXYCZj6xKdQ&t=16s

i rev, and then i get the tchsssssssssssss, sound when i back off the throttle.

Isn't that perfectly normal? I can bet mine's even louder, especially when cold, sounds like a jet taking off. I've been told that the turbos on D5s are noisy.

swil00 · Aug 14th, 2017, 18:45

Well, finally got some time to get under the car to check and test turbo actuator and connect a vacuum gauge to test the governor while I was at it.

The actuator on the turbo moves freely with a hand pump tester. Holds vac with no issues.

After that I connected a vacuum tester inline with the connection to the turbo actuator. The governor seems to be doing it's job correctly above idle, but not sure why it's getting 20 inhg of vacuum at idle though.

https://youtu.be/fI7hSJrvRsU

Could be the governor, but guess it could also be a result of vnt control on the remap.

TCV tests fine.

While under it I noticed a coating of oil on the turbo pipe to the intercooler. There is also some oil lying around the intercooler.

It's in at a specialist later this week of a routine service, so will have a chat with them. Suspect the remap will be coming off until to confirm the governor first rather that swapping it first.

MarvinMitt · Aug 15th, 2017, 09:59

Quote:

Originally Posted by swil00

After that I connected a vacuum tester inline with the connection to the turbo actuator. The governor seems to be doing it's job correctly above idle, but not sure why it's getting 20 inhg of vacuum at idle though.

To keep the turbo spooling and avoid lag?
From the video I would tell that your vacuum system works fine.

Bonefishblues · Aug 15th, 2017, 11:37

Quote:

Originally Posted by swil00

Well, finally got some time to get under the car to check and test turbo actuator and connect a vacuum gauge to test the governor while I was at it.

The actuator on the turbo moves freely with a hand pump tester. Holds vac with no issues.

After that I connected a vacuum tester inline with the connection to the turbo actuator. The governor seems to be doing it's job correctly above idle, but not sure why it's getting 20 inhg of vacuum at idle though.

https://youtu.be/fI7hSJrvRsU

Could be the governor, but guess it could also be a result of vnt control on the remap.

TCV tests fine.

While under it I noticed a coating of oil on the turbo pipe to the intercooler. There is also some oil lying around the intercooler.

It's in at a specialist later this week of a routine service, so will have a chat with them. Suspect the remap will be coming off until to confirm the governor first rather that swapping it first.

You have checked the intercooler? That's the classic symptom of a failed/failing one.

Jul 29th, 2017, 14:11	#42
wagonwheels Member Last Online: Yesterday 18:43 Join Date: May 2015 Location: kinross	It was an experiment regarding fitting the down pipe Dave.It was a cheap ebay thing of poor quality to see if a standard v70 d5 downpipe could be made to fit.Answer is it can with alot if fannying about and bending but the resonance at 2000rpm was too much for me.Original downpipe being fitted today so my ears can recover. __________________ 1997 v70 SE tdi 1998 V70 T5 CD 1999 V70R tdi 1989 240glt 1994 940 d24

Jul 31st, 2017, 18:47	#44
wagonwheels Member Last Online: Yesterday 18:43 Join Date: May 2015 Location: kinross	Well the dip in power is less apparent now ,sadly it doesn't seem as powerful at the top end and sounds quiet again __________________ 1997 v70 SE tdi 1998 V70 T5 CD 1999 V70R tdi 1989 240glt 1994 940 d24

Aug 1st, 2017, 23:30	#46
wagonwheels Member Last Online: Yesterday 18:43 Join Date: May 2015 Location: kinross	I would say without scoping boost it is certainly boosting to spec.The down pipe that's refitted is the original Volvo system mated to a stainless one box system.The noise was nice apart from at 2000rpm where it seemed to resonate through the car while boosting at its highest (apparently) amount.It seemed to boost quicker and go better with the decat pipe but having not had it on a dyno its just seat of your pants feeling.Its difficult to gauge true bhp but the last s60 d5 185 (when standard) felt about the same apart from the xc has more low down pull.I think that's pretty impressive considering the added weight.When I had the s60 mapped it was a different car and was alot quicker than the xc. __________________ 1997 v70 SE tdi 1998 V70 T5 CD 1999 V70R tdi 1989 240glt 1994 940 d24 Last edited by wagonwheels; Aug 1st, 2017 at 23:36.

Jul 29th, 2017, 08:48	#41
Max HEADVROOM Senior Member Last Online: Jan 8th, 2022 15:01 Join Date: Dec 2016 Location: pontefract	this is what mine sounds like.. https://www.youtube.com/watch?v=RXYCZj6xKdQ&t=16s i rev, and then i get the tchsssssssssssss, sound when i back off the throttle.

Jul 29th, 2017, 14:23	#43
davebb Premier Member Last Online: Apr 22nd, 2024 13:38 Join Date: Aug 2013 Location: Emsworth,hants	Ok , please let me know if it seems to run any better with the STD one, Thanks Dave

Jul 31st, 2017, 22:31	#45
davebb Premier Member Last Online: Apr 22nd, 2024 13:38 Join Date: Aug 2013 Location: Emsworth,hants	Hi so do you think it has now stopped overboosting, so have you got a high flow catback exhaust, so the down pipe decat did improve performance, was the noise a lot louder , Dave

Aug 14th, 2017, 18:45	#48
swil00 Member Last Online: Apr 9th, 2024 11:07 Join Date: May 2013 Location: Glasgow	Well, finally got some time to get under the car to check and test turbo actuator and connect a vacuum gauge to test the governor while I was at it. The actuator on the turbo moves freely with a hand pump tester. Holds vac with no issues. After that I connected a vacuum tester inline with the connection to the turbo actuator. The governor seems to be doing it's job correctly above idle, but not sure why it's getting 20 inhg of vacuum at idle though. https://youtu.be/fI7hSJrvRsU Could be the governor, but guess it could also be a result of vnt control on the remap. TCV tests fine. While under it I noticed a coating of oil on the turbo pipe to the intercooler. There is also some oil lying around the intercooler. It's in at a specialist later this week of a routine service, so will have a chat with them. Suspect the remap will be coming off until to confirm the governor first rather that swapping it first.

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